From 8a77b4785acd143d76ccc08142abb39c0100de3d Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Sun, 27 Apr 2025 03:39:44 +0200 Subject: or1k: add fenv support from glibc --- libm/or1k/fclrexcpt.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 libm/or1k/fclrexcpt.c (limited to 'libm/or1k/fclrexcpt.c') diff --git a/libm/or1k/fclrexcpt.c b/libm/or1k/fclrexcpt.c new file mode 100644 index 000000000..ecb327d72 --- /dev/null +++ b/libm/or1k/fclrexcpt.c @@ -0,0 +1,42 @@ +/* Clear given exceptions in current floating-point environment. + OpenRISC version. + Copyright (C) 2024-2025 Free Software Foundation, Inc. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + . */ + +#include +#include + +int +feclearexcept (int excepts) +{ + fpu_control_t cw; + fpu_control_t cw_new; + + /* Mask out unsupported bits/exceptions. */ + excepts &= FE_ALL_EXCEPT; + + /* Read the complete control word. */ + _FPU_GETCW (cw); + + cw_new = cw & ~excepts; + + /* Put the new data in effect. */ + if (cw != cw_new) + _FPU_SETCW (cw_new); + + /* Success. */ + return 0; +} -- cgit v1.2.3